X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 5.5
Temperature 298.0
Details ammonium sulfate, acetate, glycerol , pH 5.5, VAPOR DIFFUSION, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 47.25 α = 90
b = 47.25 β = 90
c = 297.55 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-01-13
IMAGE PLATE MARRESEARCH -- 1999-03-27
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I711 -- MAX_II I711
SYNCHROTRON ESRF BEAMLINE BM14 0.9786,0.9788,0.9184 ESRF BM14

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.55 30 97.4 0.049 -- -- 6.7 11927 11648 -- 1.0 50.7
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.55 2.65 91.8 0.153 -- 9.5 5.8 1261

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 2.55 30.0 0.0 0.0 11878 11878 597 99.3 0.232 0.232 0.23 0.277 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.55 2.71 -- 100 1808 0.345 0.398 0.04 99.1
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 40.8
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 22.3
c_angle_deg 1.3
c_mcbond_it 3.82
c_scbond_it 11.21
c_bond_d 0.006
c_improper_angle_d 0.96
c_scangle_it 13.18
c_mcangle_it 5.36
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.35
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.41
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1504
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 73

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
MLPHARE phasing
CNS refinement
CCP4 data scaling version: (SCALA)